Add symlink API to the DirAccess (on macOS and Linux).

2 files changed, 51 insertions, 0 deletions

diff --git a/drivers/unix/dir_access_unix.cpp b/drivers/unix/dir_access_unix.cpp
index 3323da5db4..5abe5d2c87 100644
--- a/drivers/unix/dir_access_unix.cpp
+++ b/drivers/unix/dir_access_unix.cpp
@@ -406,6 +406,53 @@ Error DirAccessUnix::remove(String p_path) {
 	}
 }
 
+bool DirAccessUnix::is_link(String p_file) {
+	if (p_file.is_rel_path()) {
+		p_file = get_current_dir().plus_file(p_file);
+	}
+
+	p_file = fix_path(p_file);
+
+	struct stat flags;
+	if ((lstat(p_file.utf8().get_data(), &flags) != 0)) {
+		return FAILED;
+	}
+
+	return S_ISLNK(flags.st_mode);
+}
+
+String DirAccessUnix::read_link(String p_file) {
+	if (p_file.is_rel_path()) {
+		p_file = get_current_dir().plus_file(p_file);
+	}
+
+	p_file = fix_path(p_file);
+
+	char buf[256];
+	memset(buf, 0, 256);
+	ssize_t len = readlink(p_file.utf8().get_data(), buf, sizeof(buf));
+	String link;
+	if (len > 0) {
+		link.parse_utf8(buf, len);
+	}
+	return link;
+}
+
+Error DirAccessUnix::create_link(String p_source, String p_target) {
+	if (p_target.is_rel_path()) {
+		p_target = get_current_dir().plus_file(p_target);
+	}
+
+	p_source = fix_path(p_source);
+	p_target = fix_path(p_target);
+
+	if (symlink(p_source.utf8().get_data(), p_target.utf8().get_data()) == 0) {
+		return OK;
+	} else {
+		return FAILED;
+	}
+}
+
 uint64_t DirAccessUnix::get_space_left() {
 #ifndef NO_STATVFS
 	struct statvfs vfs;
diff --git a/drivers/unix/dir_access_unix.h b/drivers/unix/dir_access_unix.h
index 12994a6b76..28a7053d25 100644
--- a/drivers/unix/dir_access_unix.h
+++ b/drivers/unix/dir_access_unix.h
@@ -79,6 +79,10 @@ public:
 	virtual Error rename(String p_path, String p_new_path);
 	virtual Error remove(String p_path);
 
+	virtual bool is_link(String p_file);
+	virtual String read_link(String p_file);
+	virtual Error create_link(String p_source, String p_target);
+
 	virtual uint64_t get_space_left();
 
 	virtual String get_filesystem_type() const;